Mechanical Rotary Encoders | Shaft Encoders | RS
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    Mechanical Rotary Encoders

    Mechanical rotary encoders, also called shaft encoders, are electro-mechanical devices that convert the angular motions (movement around fixed points) of rotary shafts into either analogue or digital signals.

    What are mechanical rotary encoders used for?

    Applications that require precision shaft rotation (movement around a specific point) make use of mechanical rotary encoders.

    These include industrial control machinery in factories, rotating radar platforms in satellite structures or computer input devices like trackballs and mice.

    Types of mechanical rotary encoders

    Absolute encoders:

    • have tracking functions to determine specific shaft positioning points in industrial equipment like CNC machines, lathes and bore machines.
    • maintain positioning data even when power is cut from the system. When the system is switched on again it begins operating from the point where it stopped previously.

    Incremental (relative) encoders:

    • record deviations in shaft position points over certain time frames. With each new time frame after power is cut and switched on again the encoder starts recording from a predetermined reference and measures the distance between the previous point and the current point.

    214 Products showing for Mechanical Rotary Encoders

    Elma
    16
    Slotted
    6 mm
    2 bit Quadrature
    Digital Square Wave
    -
    -
    -
    -
    -
    Omron
    1000 ppr
    -
    40 mm
    Incremental
    -
    -
    -
    -
    -
    -
    Alps Alpine
    24
    Flat
    6 mm
    Incremental
    -
    Through Hole
    25mm
    -
    -
    1.2 mm, 2 x 2.1 mm
    Alps Alpine
    24
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    25mm
    Indexed
    -
    2.1 x 2 mm, 1 mm
    Alps Alpine
    15
    Flat
    -
    -
    -
    Through Hole
    20mm
    Not Indexed
    -
    -
    Bourns
    24
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    20mm
    Not Indexed
    60rpm
    1 mm, 2.6 x 1.8 mm
    Omron
    -
    -
    6 mm
    -
    -
    -
    -
    -
    -
    -
    Bourns
    24
    Knurl
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    20mm
    -
    60rpm
    1mm
    Alps Alpine
    12
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    25mm
    Not Indexed
    -
    1 mm, 2.1 x 2 mm
    Bourns
    15
    -
    3.1 mm
    Incremental
    2-Bit Quadrature
    -
    -
    Not Indexed
    -
    -
    Elma
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Bourns
    24
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    25mm
    Not Indexed
    100rpm
    1 mm, 2 x 2.1 mm
    Elma
    16
    Slotted
    6 mm
    2 bit Quadrature
    Digital Square Wave
    -
    -
    -
    -
    -
    Elma
    8
    Slotted
    6 mm
    2 bit Quadrature
    Digital Square Wave
    -
    -
    -
    -
    -
    Elma
    16
    Slotted
    6 mm
    2 bit Quadrature
    Digital Square Wave
    -
    -
    -
    -
    -
    Bourns
    24
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    9mm
    Not Indexed
    100rpm
    1 mm, 2.1 x 2 mm
    Wurth Elektronik
    15
    -
    6 mm
    Incremental
    -
    Through Hole
    20mm
    -
    -
    -
    Bourns
    24
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    30mm
    Not Indexed
    100rpm
    1 mm, 2 x 2.1 mm
    Alps Alpine
    12
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    20mm
    Not Indexed
    -
    1 mm, 2.1 x 2 mm
    Bourns
    12
    Flat
    6 mm
    Incremental
    Digital Square Wave
    Through Hole
    10mm
    Not Indexed
    100rpm
    1 mm, 2 x 2.1 mm
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